A history of glacial boundaries in Indiana

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Date

2011

Journal Title

Journal ISSN

Volume Title

Publisher

Indiana Geological & Water Survey

Abstract

"This publication traces the progress of mapping the furthest extent of the Pleistocene ice lobes in Indiana from their first understanding in the mid-nineteenth century to the boundaries that define current knowledge of the glacial limits. The work of mapping glacial boundaries in Indiana first focused on identifying the extent of the southernmost advances of pre-Wisconsin-age ice lobes. The line so defined is of uncertain precision and over the years has been subject to change. Later work has identified the position of the more recent, more influential, and better defined Wisconsin-age glacial limit. The report describes the historical progress of mapping these boundaries, which are important to an understanding of the geological and hydrological processes intimately related to the distribution of materials that remain from the glacial advances. An annotated bibliography is included, which provides details of the historical literature and describes the stepwise and cumulative contribution of many workers in mapping the glacial boundaries in Indiana. Associated with this report are geographic information system (GIS) data layers representing the two major glacial boundaries in Indiana (Pre-Wisconsin and Wisconsin). These can be downloaded as shapefiles from the IndianaMap under the “Geology” category: http://inmap.indiana.edu/dload_page/geology.html.

Description

Keywords

Glaciology, Indiana Geology

Citation

Gray, H. H., and Letsinger, S. L., 2011, A history of glacial boundaries in Indiana: Indiana Geological Survey Special Report 71, 10 p., 1 fig. doi: 10.5967/gz5r-3968

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This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/ or send a letter to Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 94105, USA.

Type

Technical Report